Update cflinuxfs2 esm pivnet metadata
Update cflinuxfs2 esm pivnet metadata

- Should be the actual artifact, not the source tar
- Change what the file is uploaded as

cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci